Indiana
Zip Code Listings

At 36,418 square miles, Indiana is the 38th largest state in America. Administratively Indiana is divided into 3570 cities and towns and 92 counties. The state's population in 2013 was 6 ,570,902 according to the 2013 United States Census, making it the 16th most populous state in America.

As of January 2014, the state has roughly 968 zip codes, which are listed below with the respective city, town, village or location name as well as the area code. The capital and largest city is Indianapolis.

Why is zip code data on an environmental science site?
In 2002 I was working on a project that correlated pollution and income for zip codes across the United States. Visitors told me the data files were very useful so I left them on the site and now update the postal information on a periodic basis even though the focus of the site is conservation.